Fix setup.py to install correct websockets version

Author: shalinmehtalgsvl

setup.py

@@ -10,7 +10,7 @@
     python_requires=">=3.5.0",
     url="https://github.com/lgsvl/simulator",
     packages=["lgsvl"],
-    install_requires=["websockets>=7.0"],
+    install_requires=["websockets==7.0"],
     license="Other",
     classifiers=[
         "License :: Other/Proprietary License",